gdb/armnbsd-nat.c

   1 /* Native-dependent code for BSD Unix running on ARM's, for GDB.
   2    Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include "defs.h"
  22
  23 #ifdef FETCH_INFERIOR_REGISTERS
  24 #include <sys/types.h>
  25 #include <sys/ptrace.h>
  26 #include <machine/reg.h>
  27 #include <machine/frame.h>
  28 #include "inferior.h"
  29
  30 void
  31 fetch_inferior_registers (regno)
  32      int regno;
  33 {
  34   struct reg inferior_registers;
  35   struct fpreg inferior_fpregisters;
  36
  37   ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  38   memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
  39           16 * sizeof (unsigned int));
  40   memcpy (&registers[REGISTER_BYTE (PS_REGNUM)], &inferior_registers.r_cpsr,
  41           sizeof (unsigned int));
  42   ptrace (PT_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fpregisters,
  43           0);
  44   memcpy (&registers[REGISTER_BYTE (F0_REGNUM)], &inferior_fpregisters.fpr[0],
  45           8 * sizeof (fp_reg_t));
  46   memcpy (&registers[REGISTER_BYTE (FPS_REGNUM)],
  47           &inferior_fpregisters.fpr_fpsr, sizeof (unsigned int));
  48   registers_fetched ();
  49 }
  50
  51 void
  52 store_inferior_registers (regno)
  53      int regno;
  54 {
  55   struct reg inferior_registers;
  56
  57   memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
  58           16 * sizeof (unsigned int));
  59   memcpy (&inferior_registers.r_cpsr, &registers[REGISTER_BYTE (PS_REGNUM)],
  60           sizeof (unsigned int));
  61   ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  62
  63   /* XXX Set FP regs. */
  64 }
  65
  66 struct md_core
  67 {
  68   struct reg intreg;
  69   struct fpreg freg;
  70 };
  71
  72 void
  73 fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
  74      char *core_reg_sect;
  75      unsigned core_reg_size;
  76      int which;
  77      CORE_ADDR ignore;
  78 {
  79   struct md_core *core_reg = (struct md_core *) core_reg_sect;
  80
  81   /* integer registers */
  82   memcpy (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
  83           sizeof (struct reg));
  84   /* floating point registers */
  85   /* XXX */
  86 }
  87
  88 #else
  89 #error Not FETCH_INFERIOR_REGISTERS
  90 #endif /* !FETCH_INFERIOR_REGISTERS */
  91
  92 int
  93 get_longjmp_target (CORE_ADDR *addr)
  94 {
  95   return 0;
  96 }